135results about How to "Easy farming" patented technology

The invention relates to the field of agricultural mulching film cleaning, recovery and reutilization, overcomes the defects in the prior art, and provides a residual mulching film recovering method and a residual mulching film recovering machine set capable of recovering residual mulching films left on the ground surface and buried under the ground surface. The method concretely comprises the following steps that a soil layer with residual mulching films at the ground surface is scarified; the scarified soil and the residual mulching films are scooped up; the scooped soil and residual mulching films are flapped so that the residual mulching films fall off from the soil, and in addition, the residual mulching films and the soil are centrifugally separated; finally, the residual mulching films are collected. The method and the machine set have the advantages that the ground surface soil layer buried with the mulching films is directly scarified, then, the scarified soil is collected together with the turned residual mulching films, mixtures of the soil and the residual mulching films are subjected to centrifugal separation, and finally, the separated mulching films are collected.

The invention provides a pitting field and hedgerow combined farming mode and a structure thereof. According to the invention, the upper and lower edges of a slope-surface land parcel are provided with permanent slope-protecting ridges; gutters are dug at the outer sides of the ridges and at the left and right sides of the slope-surface land parcel; the gutters are interconnected to form a slope-surface gutterway; horizontal interception ditches with equal altitude are dug in the interior of the slope-surface land parcel from top to bottom according to critical slope length which leads to rill erosion, so the slope-surface land parcel is divided into a plurality of farming districts with equal length; ridges and furrows are constructed along slope direction in the farming districts; the downslope furrows, the interception ditches with equal altitude and the slope-surface gutters are communicated to form a slope-surface water drainage network; downslope furrow pitting field earth ridges and equal-attitude interception ditch pitting field earth ridges are constructed in the downslope furrows and the interception ditches at same intervals, thereby forming downslope furrow pitting fields; and cross slope ridges with equal altitude are constructed at the middle parts of the farming districts, and water-retaining plants are planted on the ridges to form ridge hedgerow. The combined farming mode provided by the invention has the advantages of simple operation, low cost and substantial control effect on water and soil loss.

The invention relates to the problem of a concealed conduit system for both irrigation and drainage of a farmland and belongs to the technical field of agricultural water soil engineering. The concealed conduit system for both irrigation and drainage of the farmland comprises a water pipe and a seepage pipe, and is characterized in that: the starting end of the water pipe is connected to an irrigation water inlet valve; the terminating end of the water pipe is connected to a drainage control valve; the gradient of the water pipe along a water flow direction is 1 / 500 to 1 / 1000; the water pipe is paved 1.5 to 1.8m under the ground; a water hydrant is upwards arranged on the water pipe every 30 to 50m; a water absorption tube system is arranged along the horizontal and vertical direction of the water pipe every 10 to 20m; the water absorption tube system comprises a backstop, an inspection well and the seepage pipe, which are sequentially communicated; the backstop is communicated with the water pipe; and the gradient of the seepage pipe along the water flow direction is 1 / 300 to 1 / 600. In the concealed conduit system, a low-pressure pipeline irrigation concealed conduit system and a drainage concealed conduit system are combined, so two functions of one set of pipe net are realized, the density of pipe net buried in the farmland can be effectively reduced, and farmland cultivation and mechanical operation are facilitated.

The invention relates to the field of farm machines, and discloses a straw deep scarification burying machine. In order to solve the problems that currently, a ploughing machine used for burying straw into the underground is large in horsepower and the like, the machine comprises a machine frame, a suspension bracket is arranged at the front end of the machine frame, front wheels are installed on the machine frame through a shaft, the machine frame is provided with a transmission box, a pick-up device, a screw conveyer for pushing the straw, and a compulsive feeding roller, and feeding teeth are arranged on the compulsive feeding roller; the machine frame is further provided with an obliquely arranged screw conveyer, a gear box is disposed on the machine frame, the obliquely arranged screw conveyer stretches out of the machine frame, and a front deep scarification plough and a rear deep scarification plough are fixed to the machine frame; a compressing roller is disposed on a compressing roller support which is connected with a connecting arm and the machine frame through rotary shafts; a cylinder body of a hydrocylinder is fixed to the suspension bracket, and a cylinder rod is fixed to the machine frame. Teeth are arranged on the compressing roller. The straw deep scarification burying machine has the advantages of being capable of achieving deep scarification burying and low in traction power.

The invention provides a high-yielding soybean cultivation method, relating to a crop planting technology. The high-yielding soybean cultivation method is aimed at solving the problems that the existing soybean cultivation methods are tedious and complicated and are low in soybean yield. The method comprises the steps: (1) finely carrying out soil preparation; (2) elaborately treating seeds; (3) covering the seeds tightly with pharmaceuticals; (4) carrying out plasma treatment; (5) mixing with nitragin; (6) elaborately seeding and fertilizing; (7) elaborately weeding; (8) carrying out post-emergence weeding; (9) carrying out intertillage; (10) accurately controlling seedlings, thereby completing the high-yielding soybean cultivation method. The high-yielding soybean cultivation method provided by the invention is simple, and the yield increase rate can reach 30-35%; by adopting the high-yielding soybean cultivation method provided by the invention, the yield of soybeans can reach up to 270kg / mu. The high-yielding soybean cultivation method can be obtained.

The invention discloses a system and a method by utilizing a fuel cell to treat organic wastewater and synchronously repair heavy metal in soil. The system comprises a microbiological fuel cell, a data acquisition regulation and control device and a soil electrodynamic remediation device. One end of the data acquisition regulation and control device is connected with an anode unit and a cathode unit through lead wires correspondingly; the other end of the data acquisition regulation and control device is connected with a negative electron and a positive electrode through lead wires correspondingly; and the data acquisition regulation and control device is used for acquiring a voltage signal generated by the microbiological fuel cell and for regulating and controlling the magnitude of electric current received by the soil electrodynamic remediation device. By utilizing the microbiological fuel cell to treat organic wastewater, wastewater is treated, and electric energy is generated to remove the heavy metal in the soil; the system and the method do not damage a soil structure and the organic content in the soil is not affected; and at the same time, the data acquisition regulation and control device is adopted, so that the electric energy utilization efficiency of the microbiological fuel cell is improved effectively and the removal rate of the heavy metal in the soil is reduced.

A layered fertilization cultivation method of annual agricultural economic crops comprises steps of soil loosening, disinfection, soil preparation, bait throwing, clay fertilizer application, chemical fertilizer application, organic fertilizer application, soil covering and seedling planting, root protection, watering and the like so as to enable a cultivation base to form a substrate layer (1), a clay fertilizer layer (2), a chemical fertilizer layer (3), an organic fertilizer layer (4), a seedling separation soil layer (5) and a seedling protection soil layer (6) from bottom to top and accordingly the layered fertilization cultivation is achieved. Compared with the existing method that the fertilization is performed after cultivation and green returning of seedlings, the labor is saved, the cultivation is convenient, and the damage to the seedlings when the fertilization is performed later can be avoided; the fertilizer protection is facilitated and the nutrient loss caused by the scattering of the fertilizer due to the rain is avoided; the concentrated supply of the fertilizer is facilitated and the crop growth is facilitated; the fertilization is performed first, then the seedlings are planted, namely that the fertilizer waits for the seedlings, and accordingly fertilizer nutrients can be timely obtained when the seedlings survive and return to green; the growth speed can be improved due to the comprehensive effect of the layered fertilization cultivation method, the healthy growth of the seedlings is achieved, and the harvest is increased.

The invention relates to a stalk returning-to-field machine, in particular to a chopping-type stalk returning-to-field machine, which comprises a power transmission mechanism, a rack and a main shaft which is arranged on the rack. The main shaft is fixedly arranged on the rack through bearings. Two reverse crankshafts are arranged on the main shaft and are respectively connected with cutter rods and cutters at the lower parts of the cutter rods through shaft sleeves. A pull rod is arranged at the back of each cutter. The front end of each pull rod is hinged onto the cutter or the cutter rod. The rear end of each pull rod is hinged onto the rack. Further, roll stands are additionally arranged at the front lower part of the rack. A transverse press roll is arranged on the roll stand. The chopping-type stalk returning-to-field machine has the beneficial effects that 1) since corn stalks are chopped into short sections, the retention of nutrients is facilitated; 2) the soil of a chopped plot is comparatively loose, the soil moisture conservation effect of a dry land is good, the air drying of the ground surface of a wet land is facilitated, and the cultivation of crops is facilitated; 3) sine the stalks are chopped into short sections, the short stalk sections can be conveniently buried through plowing by using a plow; 4) and compared with the transitional crushing-type stalk returning-to-field machine, the power consumption is less and the operation efficiency is high; and according to tests, the cost of returning the stalks is only 3-15 Yuan per mu.

The invention discloses an environment-friendly full-automatic harvester. The environment-friendly full-automatic harvester includes a harvester body, the rear end of the harvester body is provided with a ploughing device, a baffle is arranged at the position, located at the upper end of a harvest head, of the front end of the harvester body, the upper end of a manipulation chamber is provided with a solar battery panel, and a small pulse dust remover is arranged at one side of a granary. According to the environment-friendly full-automatic harvester, through the ploughing device, it is convenient to plough the land after harvest, integration of the harvest and ploughing is achieved, and workers' time and labor are saved; through the solar battery panel, a power source can be stored and provided for the manipulation chamber, it is convenient for operators to use the environment-friendly full-automatic harvester at any time, the harvester body is prevented from breaking down, and the situation is prevented that due to the lack of power supply, the workers' operation is influenced; through the small pulse dust remover, it is convenient to treat tail gas generated by the harvester body, and the tail gas generated by the harvester body is prevented from influencing the atmosphere of working environment and damaging the workers' health.

The invention discloses a soil detection system based on a network.The soil detection system comprises a temperature and humidity sensor, a pH value sensor, an operational amplification unit, a collecting module, a first power module, a first wireless module, a second wireless module, a controller, a networking module, a second power module, a display module and an alarming module.The operational amplification unit is electrically connected with the temperature and humidity sensor, the collecting module is electrically connected with the operational amplification unit and the pH value sensor, the first power module is electrically connected with the collecting module, and the first wireless module is electrically connected with the collecting module.The second wireless module is in communication with the first wireless module, the controller is electrically connected with the second wireless module and the alarming module, and the second power module is electrically connected with the controller.The soil detection system can effectively reflect the soil moisture content and the pH value of soil, and a scientific base is provided for tillers.

The invention discloses an intelligent remote-control solar insecticidal lamp which comprises a solar cell panel (1), a controller, an energy storage cell, a rain shade (2), a lamp post (9), a base (8), an energy-saving insecticidal lamp (4), a high voltage power network (3), an insect collector (5) and an insect collection box (7). The intelligent remote-control solar insecticidal lamp is characterized in that the intelligent remote-control solar insecticidal lamp further comprises a fault detection unit, a main control unit, a cell capacity detection unit, full collection warning units (6) for the insect collection box, a network transmission unit and a remote monitoring host computer, wherein the high voltage power network is arranged at the periphery of the energy-saving insecticidal lamp; the rain shade is arranged at the upper part of the energy-saving insecticidal lamp, and the lower part of the energy-saving insecticidal lamp is connected with the insect collector; the lower part of the insect collector is connected with the insect collection box; the controller, the fault detection unit, the main controller and the cell capacity detection unit are arranged below the insect collector; the full collection warning units (6) for the insect collection box are arranged at the inner part of the insect collection box; and the energy storage cell is arranged in the base. The intelligent remote-control solar insecticidal lamp has the advantages that the design is reasonable, and by additionally mounting remote monitoring control equipment, the working state of the insecticidal lamp can be remotely monitored.

A soil amendment product made from biomass, and a method of making a soil amendment product from biomass. The soil amendment is made by processing biomass in a pressurizable reaction vessel with heat, pressure and agitation.

The invention discloses a preparation method of a bioorganic fertilizer. The preparation method comprises the following steps: respectively crushing corn stalks, wheat straws and sorghum straws, uniformly mixing the obtained crushed materials, and adding water to soak the obtained mixture to obtain a mixed straw material; uniformly mixing the mixed straw material, a mixed bacterial agent, pig manure, cow dung, sheep manure, distillers'grains, urea, soybean meal, corn flour, brown sugar and water to obtain a mixture; adding the mixture into a reaction kettle, covering the reaction kettle with akettle lid, carrying out heating fermentation, turning the obtained heap, and taking out the obtained decomposed mixture in order to obtain a fermented material; and drying the fermented material, granulating the dried fermented material, and bagging the granulated fermented material to obtain the bioorganic fertilizer. The preparation method has the advantages of short fermentation period, smalloccupied land and low labor cost, and the prepared bioorganic fertilizer has the advantages of good fertilizer effect and high quality.

The invention relates to an interplanting and reclamation method of agro-fruits in a dump of an open pit coal mine in an arid area. The interplanting and reclamation method comprises the following steps: leveling lands; after land ageing and leveling, immediately sowing seeds, planting perennial leguminous plants and gramineous plants, serving as sowed plants, in a mixing manner, plowing once in summer every year, burying fresh plant bodies into soils so as to increase the organic matter content of the soils by virtue of rot, and then sowing seeds of the perennial leguminous plants and the gramineous plants while plowing; planting local suitable fruit trees in lines after land being cured; after the fruit trees survive for one year, interplanting crops with height not exceeding the fruit trees between every two lines of the fruit trees. According to the interplanting and reclamation method disclosed by the invention, as in the land curing process, the fresh plant bodies are buried into the soils so as to increase the organic matter content of the soils by virtue of rot, rhizobia of the leguminous plants is capable of fixing nitrogen so as to increase N element of the soils, and roots of the gramineous plants are uniformly distributed, surface soils and the physical properties thereof can be better kept, the water and air permeability as well as the water and fertilizer conservation of the soils are improved while erosion is reduced, and the level of ordinary cultivated lands is reached.

The invention discloses a harvester of a fixed lower header capable of preventing splashing of broken straws. The harvester comprises the lower header, wherein the lower header is firmly welded on a front axle of the harvester and comprises a lower header main frame, a lower cutting mechanism, a straw breaking mechanism and a transmission mechanism. The harvester also comprises a fixation rod and blocking angle iron, wherein a first right angle edge of the blocking angle iron is welded on the lower edge of the rear part of a blocking cover; and a second right angle edge is located under the first right angle edge and perpendicular to the horizontal ground. Each cutting blade is parallel to the horizontal ground. The transmission mechanism comprises a chain, a driven chain wheel, a first transmission shaft, a first pulley, a first belt, a second pulley, a second transmission shaft, a third pulley, a third belt, a tensioning pulley and a tensioning pulley installation shaft. The harvester of the fixed lower header capable of preventing the splashing of the broken straws disclosed by the invention has the advantages that straw parts left after cereal reaping can be cut and smashed, so a feeding amount of the harvester can be reduced, and machine losses and threshing loads can be reduced; stubble cutting is low and smooth, so ploughing becomes easier; and straw smashing efficiency is high, and the broken straws will not be splashed.

A garden tool for aerating, tilling, weeding, cultivating, and injecting a mixture of either water and air, or water, air, and fertilizer into the soil to the roots of plants has a shaft having a first end, second end, a hollow core, and an axis. A control handle is attached to the first end of the shaft and in fluid connection with the hollow core of the shaft. A trigger is mounted to the control handle, for varying a flow rate of water passing from a water source to the hollow core of the shaft. A coupler receives a water hose. A hand grip is adjustably mounted to the shaft and movable along the axis of the shaft, and includes a clamp mounted to the hand grip, for securing the hand grip to a location on the shaft. A triangular shaped head is operatively attached to the second end of the shaft and in fluid connection with the hollow core of the shaft. The triangular shaped head has a bottom surface on which teeth are mounted. The teeth have first surfaces that are convex shaped. A number of multiple water jet apertures are on the bottom surface of the triangular shaped head for discharging the mixture of water / air or water / air / fertilizer.

The invention discloses a method for repairing heavy metal polluted soil, and particularly discloses an in-situ repairing method of heavy metal polluted soil by utilizing compound functional resin and leacheate. The method comprises the following steps: (1) embedding the compound functional resin into heavy metal polluted soil; and (2) wetting the heavy metal polluted soil with the leacheate, wherein the compound functional resin is metal compound loaded ion exchange resin, and the metal compound is zirconium phosphate or zirconium dioxide; and the leacheate is citric acid, sodium acetate, sodium nitride or ammonium nitrate solution. By adopting the method, the soil structure and property are not changed during in-situ soil repairing, and late crop cultivation is facilitated; and the compound functional resin can be recycled, does not generate secondary pollution, can be used for reducing cost and increasing economic benefit, is not influenced by environmental conditions, and is simple in method.

The invention discloses a multifunctional integrated cultivator. The multifunctional integrated cultivator comprises a rack, a power control assembly, a lifting mechanism, a cultivation device and a carriage, wherein walking devices are arranged on two sides of the rack, the power control assembly is fixed to the rack, the lifting mechanism and a first lifting driving device are arranged on the rack, the cultivation device is used for cultivating soil, the top of the lifting mechanism is detachably connected with the cultivation device or the carriage, and the power control assembly can provide power for the walking devices and the first lifting driving device; when the top of the lifting mechanism is detachably connected with the cultivation device, the first lifting driving device can drive the lifting mechanism to rise and fall and drive the cultivation device to rise and fall; when the top of the lifting mechanism is connected with the carriage, the carriage is fixedly connected orrotationally connected with the lifting mechanism; the first lifting driving device can drive the lifting mechanism to rise and fall and drive the carriage to rise and fall; and the first lifting driving device can drive the carriage to rotate around a rotating part. The multifunctional integrated cultivator can cultivate soil, facilitate agricultural production activities for orchards and improve the agricultural operation efficiency.

The invention discloses waste soil recycling equipment which comprises a box body, an empty bin is arranged in the box body, a soil collecting mechanism is arranged in the empty bin, the soil collecting mechanism comprises a shovel plate, the shovel plate is fixedly connected to the left end face of the box body, and the shovel plate is fixedly connected to the left end face of the box body. The invention provides a mechanism capable of recycling soil in batches, the soil is transported into the equipment, under the action of the rotating garbage recycling mechanism, garbage in the soil is wound on the garbage collecting mechanism, after the garbage is collected to a certain degree, the garbage collecting mechanism is reversed, and the garbage is transferred into the garbage collecting mechanism; and components beneficial to cultivation are added into the soil while the soil runs in the equipment, and the soil is scattered when being conveyed to the external space, so that more oxygen is contained in the soil, and cultivation is more facilitated.

The invention discloses a movable lifting greenhouse. The greenhouse comprises a greenhouse main body, wherein the greenhouse main body is provided with a lifting frame; the lifting frame is controlled through a movable control mechanism to realize lifting on the greenhouse main body; for example, the lifting frame can be lifted in a cultivation season to facilitate the cultivation of farmers; if typhoon occurs, the lifting frame can be descended to prevent the damage caused to the greenhouse by the typhoon, so that the damage is minimized; in addition, component connection parts are arranged to be movable buckles, so that damaged components are convenient to replace, and the product practicability is greatly enhanced; thus the greenhouse has good application prospect.

The invention discloses a soil improvement machine. The soil improvement machine comprises a tractor, a deep ploughing device, a material applying device and a flattening device, wherein the deep ploughing device, the material applying device and the flattening device are fixedly arranged on the tractor and are sequentially arranged in the advancing direction of the tractor. The method comprises the following steps that: firstly, soil is turned up and enters a mixing box, and the soil is cut and raked step by step, so that soil blocks in the soil become small and loose, and chemical adding isfacilitated; chemical adding improvement is carried out on the soil while cutting and raking are carried out, and chemical adding comprises solid materials and liquid materials, so that the liquid adding requirements of different improvers can be met; and after the soil is cut, raked and mixed with added liquid, the soil is flattened by the flattening device, so that later soil fertilization and cultivation are facilitated. According to the soil improvement machine, the improvement operation of the soil is convenient, the improvement effect is good, all the procedures are automatically completed by the machine, the improvement working efficiency is high, and the soil improvement machine is suitable for large-range and large-area soil improvement work.

The invention discloses a tillage combination method for soil and water conservation of sloping farmland, relating to the field of tillage methods for soil and water conservation. The tillage combination method comprises that slope land is divided into several farming units along the contour lines though level terraces; alternate sloping tillage of longitudinal tillage and transverse tillage are performed in the longitudinal direction of each tillage unit; pedestrian stone steps are constructed on both sides of sloping farmland; a drainage ditch is dug between the sloping fields and the pedestrian stone steps and transverse furrows and drainage channels are connected; every three years, the transverse tillage is performed on the sloping farmland and the slope is ridged again; the furrows are deeply scarified each year; After heavy rainfall, transverse furrow and longitudinal furrow are repaired and the drainage ditch is cleaned. The tillage combination method combines short ridge farming, the terraces, the pedestrian stone steps, the drainage ditch, deep tillage and deep scarification, periodic repairing furrow and cleaning drains regularly to form a new tillage combination of sloping farmland, so as to reach the purpose of soil and water conservation of sloping land and crop yield increasing.

The invention discloses a biological organic fertilizer using orange peel residue as a main raw material and a preparation method thereof. The biological organic fertilizer comprises the following raw materials in percentage by weight: 65 to 75 percent of orange peel residue, 5 to 8 percent of rice husk, 4 to 5 percent of wood dust, 0 to 5 percent of stevia rebaudiana filter residue, 10 to 20 percent of animal manure, and 1 to 2 percent of micro fertilizer and biological strains. The biological organic fertilizer is prepared by the steps of orange peel residue pretreatment, proportioning, primary degradation, compost ageing treatment, adding of biological functional bacteria at the rear end and the like. Various indexes of the biological organic fertilizer prepared by the method are totally superior to the biological organic fertilizer standards issued by the state; after the biological organic fertilizer is applied to the soil, the water, fertilizer, gas and heat conditions of the soil can be effectively improved, so that the soil becomes loose and fertile and is favorable for cultivation and growth and development of crop roots, the yield is increased, and the product quality is improved; the biological organic fertilizer is particularly suitable to be used as a special biological organic fertilizer for navel orange; and the industrial waste residue of orange juice is changed into valuable, the environment is protected, the comprehensive benefit is improved, and the invention has good economic benefit and ecological benefit.

The invention discloses a double-header harvesting machine with adjustable cutting blades. The double-header harvesting machine comprises an upper header and a lower header, the upper header is hinged on a front axle of the harvesting machine, the lower header is fixedly welded on the front axle of the harvesting machine and positioned below the upper header, the upper header comprises an upper header main frame, an upper cutting mechanism, a screw conveyer, a reel and an upper header lifting mechanism, the lower header comprises a lower header main frame, a lower cutting mechanism, a straw crushing mechanism and a transmission mechanism, a 15-degree included angle is formed between each lower header connecting rod and the level ground, a 60-degree included angle is formed between cutting edges on two sides of each cutting blade, and an L-shaped hinge rod is fixed on a movable blade holder. According to the double-header harvesting machine, residual straws after grain harvesting can be cut and crushed, the feeding quantity of the harvesting machine is reduced, machine loss and threshing load are reduced, threshing effects are improved, stubbles are low and smooth, land is conveniently plowed, positions of the cutting blades can be easily and conveniently adjusted, and high cutting and crushing efficiency of the straws is ensured.

The invention relates to the technical field of structural engineering, in particular to a large-span greenhouse. The large-span shed is characterized in that a pair of parallel arched frames is arranged on reinforced concrete piles inserted into underground, equidistant holes are reserved in the frame, and fixed pulleys are arranged beside the holes; and a steel cable is connected from a starting hole of one frame to a corresponding hole of the other frame and then turns back by connecting the next hole after winding a fixed pulley set, and such repeat connection of the steel cable and all the equidistant holes in the frames form a woven roof of the greenhouse, the end of the steel cable is fastened by a tension device fixed on the last hole of the frame, so that a greenhouse structure is formed. Compared with an existing greenhouse basically the same with the large-span greenhouse, the large-span greenhouse is simple in structure, strong in firmness, long in service life and large in span. Besides, the large-span greenhouse, when used for planting, breeding and storing, is convenient to farm or to store and transport goods in the greenhouse therein.

The invention discloses a farmland ridging facility in agriculture and forestry. The farmland ridging facility comprises a body. A first fixed plate is fixed on the outer surface of the rear end of the body. The outer surface of the upper end of the body is provided with a groove. A press plate is movably arranged in the groove. A moving plate is movably arranged on the outer surface of one side of the body. A roller is movably arranged on the lower end of the body. A baffle plate is fixedly arranged on the outer surface of the lower end of the moving plate. A support rod is movably arranged on the outer surface of the lower end of the body. A ridging plate is movably arranged on the outer surface of the lower end of the support rod. By setting a series of structures, the provided facilitycan be well adjusted during the using process, a user can adjust the ridging plate according to the required distance between two ridges, the body can be extended, the user can adjust the facility according to the ridge width, and the facility is suitable for all kinds of soil and is convenient to use.

An underground self-locking plastic water outlet for a large area field irrigation consists of an elbow, a tee, a thrust pipe, a cap, a spigot and socket pipe, a liner, a support plug, a spring, a jacket and a seal ring. In the spigot and socket pipe connected on the jacket of the water pipe is disposed a liner. The support plug is disposed in the liner and the spring is mounted on the support plugging.

The invention discloses a harvester with a fixed lower cutting header and capable of evenly smashing straws. The harvester comprises a lower cutting header. The lower cutting header is fixed on a front axle of the harvester and comprises a lower cutting header main frame, a lower cutting mechanism, a straw smashing mechanism and a transmission mechanism, wherein the lower cutting header main frame further has a fixing rod; an included angle of cutting edges on two sides of each cutting blade is 60-degree; sawteeth are arranged on each side cutting edge; the straw smashing mechanism is disposed in accommodating space enclosed by a pedestal, a baffle cover, a first sealing plate and a second sealing plate; an extending end of a straw smashing blade is provided with a chamfer to form a cutting edge; the chamber is arranged on the outside of the straw smashing blade; and an adjusting gap is formed in the top of a swinging arm. Straw parts left after grain harvest can be cut and smashed by the harvester with a fixed lower cutting header and capable of evenly smashing straws, so feed quantity of the harvester can be reduced and machine loss and threshing load can be reduced; threshing effect can be enhanced; the height of stubble cutting can be remained the same; stubbles can be cut at low height and tidy thereby facilitating plantation; and straws can be evenly smashed.

The invention discloses a fully-biodegradable mulching film for tobacco and a preparation method thereof. The mulching film comprises the following raw materials in parts by weight: 100-120 parts of poly(butylene adipate-co-terephthalate), 10 to 30 parts of polylactic acid, 0.1 to 3 parts of calcium carbonate, 0.1 to 2 parts of talcum powder, 1-5 parts of a compatilizer, 0.01 to 0.5 part of a slipping agent, 0.1 to 1 part of an anti-blocking agent, 0.01 to 1 part of an antioxidant, 0.01 to 0.5 part of an ultraviolet light absorber, 0.01 to 0.5 part of an anti-aging agent, and 0.1 to 1 part ofan anti-hydrolysis agent. The preparation method of the mulching film comprises the following steps: drying poly(butylene adipate-co-terephthalate) and polylactic acid, and adding the dried poly(butylene adipate-co-terephthalate) and polylactic acid into a stirrer for stirring; sequentially adding other raw materials while stirring, and putting the uniformly mixed materials into a feeding hole ofan extruder; cooling an extruded material, carrying out granulating, and drying the granulated material to obtain a modified material; and adding the modified material into a blow molding machine, andsuccessively carrying out molding, cooling and winding to finish the production of the mulching film. The mulching film meets the requirement of tobacco growth cycle in plateau areas, is completely degraded after being used, protects the environment and increases the yield and income.